MT 1300 issues displaying wifi clients

My Beryl admin portal displays connected and unconnected clients, 2.4 and 5, and connected and unconnected. The problem is that it’s not accurately displaying connected and offline devices. Any thoughts on how to correct? Any one else experiencing the same? It’s up to date on firmware and been rebooted many times.

If you do not mind, try 3.211 snapshot. I think there is a bug fixed related to this problem.